Whats Door Hardware backset?
Backset is the measurement from the door’s edge to the center of the hole bored for the doorknobs. All lock and latch options for our Interior Door Sets have a standard 2-3/8″ backset. Mortise locks for our Exterior Door Sets come in either 2-1/2″ or 2-3/4″ backsets. Tip: Before replacing an existing lock or latch with a new one, check if the backset measurements are the same. If they are different, you’ll need to retrofit your door for the new hardware. This can be a difficult task, and may be best left to an experienced contractor.